Drain



May 1937- b. s..wu l |AMs 2,079,269

DRAIN Filed March 23, 1955 /2 5 "l 5 F 4.7 ,HW/, 37

lll

ATTRNEY Patented May 4, 1937 l l :UNITED STATES PATENT OFFICE DRAIN?David S. Williams, Portland, Oreg. Application March 2s, 1936, serialNo. 70,369

v 14 claims. (C1. 13s-32) This invention relates to improvements indrain fixtures for roofs and the like and more specifically to rooffittings of the dome type.

It is within the contemplation of my invention to utilize the gases,which are normally generated in sewers, for maintaining thedrain,constructed in accordance with my invention, in working conditioneven in extremely cold weather. It is universally acknowledged that thewaste disposals 1n in sewers generate gas;` and, inthe chemical reactionwhich takes place, suiiicient heat is given off. Some of this heated gasfinds its way into the drain pipes and other outlets. By constructe ingmy invention in the manner hereinafter to l5 be more particularlyillustrated, these warm gases passing through the drain pipe to whichthe drain is connected are directed or shunted in such manner as toadequately warm the drain fixture and thereby maintain it in operatingcondition regardless of any severe weather.

The present types of roof drains do not provide against the possibilityof excessive snow or frost completely rendering the roof xtureinoperative. One of the principal objects of my invention is Q5 toprovde a frost drain whichV will at all times be maintained in operativecondition regardless of the weather.

Another important object of the invention is to provide a multi-slottedmember and a cap therefor as a part of the drain fixture which provideagainst the contingency of the drain being rendered inoperative by dbrisor other foreign substances.

Another equally important object of the invention is to provide a memberpossessing ample slots to afford sufficient waterways or drainage areafor normal storm conditions and additional slots on the roof or dome ofthe member which accepts any overflow resulting from severe stormconditions, thereby assuring against flooded roofs caused either byexcessive rains or as a result of the lower slots being clogged bydbris.

A further object of the invention is 'to provide means whereby parts ofthe drain xture are accessible for replacement or may be readilyserviced or the flashing renewed.

Another object of the invention is to provide means within the drainixture which prevents the forming of undesirable pools or water pocketsin the base of the drain fixture or adjacent the meeting edges of theflashing and the drain fixture.

A salient object of the invention is to provide dome-shaped slottedmeans for protecting the drain fixture against being completely cloggedby dbris or being frozen over.

. `A further object of the invention is to provide means for directingthe gases .emanating Vfrom the drain pipe.

Not all of the objects, advantages and characteristic features have beenstated. Many more 5 will become apparent from the following descriptionand accompanying drawing which illustrates. by way of example, theapplication of the invention, vin which:

Figure 1 is a vertical section of a drain fixture lo embodying theprinciplesiof my invention shown as applied to a roof.

Figure 2 is a plan View of the device illustrated in Figure 1 with thecap member partially broken away to reveal the relative position of thedrainl. age slots in the drainage member.

Figure 3 is a fragmentary, sectional view, parytially broken away, of aportion of the device shown in Figures 1 and 2, taken on line 3-3 ofFigureZ, looking in the direction indicated, the 20 same beingproportionately magnied to more graphically showthe details ofconstruction and the openings toj carry o the water.

Figure`4 is a side view of the lower body portionof the drain fixturewith a portion broken 25 away to show the position of the boltswithin'the lower body portion.

The drain fitting embodying my invention consists of a support bodygenerally designated by reference character A which possesses certain 30structural characteristics now to be described. Internally threaded borel is a part of the support body. 'A drain pipe (not shown) is threadablyconnected to the bore, but any water tight co-nnection between the boreand the drain pipe may 35 be used instead of a threaded connection. Aninverted frusto-conical annular portion 2 integrally extends from borel. Integral with portion 2 is a vertically extending annular portion 3.Formed as an extension of portions 3 is a later- 40 ally extendingannular shoulder 4, and an inverted frusto-conical tapered annularflange t extends from shoulder fl.

A number of bolt anchoring and retaining recesses 6 are formed withinportion 3 and pass 45 through a portion of shoulder 4. Lugs 'l areformed on the outside 'surface ofportion 3 in order to provide sufcientarea for recesses 6 and to provide means for iXedly anchoring the whole50 of the support body securely to the supporting surface, such as aroof. Threaded bolts 8 are removably disposed in recesses 6 so that theheads 9 of the bolts fit substantially snugly within the wide portionsl0 of the recesses 6 and the 55 stems II of the bolts fit into thenarrow portions I2 of the recesses and protrude substantially beyond therecesses.

An annular retaining and anchoring plate I3 is adapted for seating uponshoulder 4. It is, however, positioned so that its inner margin orperiphery I4 avoids covering the narrow portions I2 of recesses 6 Whichpass through shoulder 4. It is to be noted that there are no openingsfor bolts or other fastening means, thus eliminating the possibility ofdamaging the flashing without sacrificing a water tight connection.

The drain fixture embodying my invention also embodies a drain memberdesignated generally by reference character B. This member is formedwith a cylindrical wall I5 possessing therein a number of radially andvertically disposed elongated slots I6. The cylindrical Wall I5 extendsupwardly and converges at apex l1 of dome portion I8. The dome portionI8 is itself4 provided with radially disposed slots I9. Slots I6 and I9are separated from each other by annular portion which has an additionalfunction hereinafter to be more specifically referred to. A laterallyextending annular nange 2I is formed around the outer surface of wall I5in coinciding relationship to the bases of slots I6. Holes 22 areprovided within flange 2| so that they register with recesses 6 in orderto permit the stems II of bolts 8 to pass therethrough. Flange ZI is notonly seated on annular retaining plate I3 and functions not only tosecure the drain member B againstsupport body A, but also to securelyanchor the retaining plate I3 against the roof covering toprovide awater tight connection therewith. This is accomplished by threadingtightly nuts 8A about stem II. An annular rim 23 extends below ange 2|and is a prolongation of wall I5 so that its periphery 24 is ibelow andin spaced relationship with shoulder 4. By this construction, provisionis made for an annular passage 25 into which a number .of ports 26,formed within the under side of flange 2|, open, These ports not onlyact as drain openi ings toallow water to enter into the drain pipes, butalso allow some ofthe gases generated in the sewer lines and emanatingfrom the drain pipe to `escape therethrough and thereby raise thetemperature around the area immediately adjacent to these ports.

`An inverted frusto-conical annular member, generally designated byreference character C, is positioned within support body A in spacedrelationship to annular portion 3. This is accomplished by providing anumber of legs 21 which extend from member C and which have their bases28 beveled to coincide with the inclined surface 29 of annular portion3. The outer peripheral edge 39 of member C is spaced from rim 23 andlies slightly below slots IB. The circumference of the inner peripheraledge 3| is slightly less than the circumference of the drain pipe (notshown). Member "C functions to direct the gases toward the annularpassage 25 and ports 26 as well as toward'the inner surface of Wall I5.

Another important unit of the drain fitting embodying my invention is adome-shaped cap designated generally by reference character D.

This cap is adapted to be seated upon and in spaced relation to the domeportion I8 and is removably secured to apex I1. To accomplish the aboveobjects, a hub 32 is provided which extends downwardly from the centerof the cap.

.A smaller hub 33 extends from hub 32. Hub 33 ts snugly within anopening 34 formed in apex I1. Another opening 35 passes through hubs 32and 33 to accommodate pin 36. A wa'sher 31 is positioned around pin 36and is held against the inner surface of the apex I'l in any desirablemanner, as by cotter key 38. To give additional support to cap "D and toprovide against its movement relative to the drain member B, a number offeet 39 are provided. These feet extend inwardly from the cap so thattheir beveled bases 4U rest upon annular portion 20. Adjacent theperiphery of the cap are formed a number of radially disposed slots 4Iwhich receive ilood waters in the event the slots I 6 are clogged bydebris.

My invention-may be used on any type of roof whether of wood, metal orcomposition; and it may also be used for floor drains where considerablerefuse is created, such as meat packing establishments and factories. Inuse, the body .A" is placed so .that the periphery of the taperedannular flange 5 is flush with the roof surface, as illustrated incross-section in Figure 1. The flashing material of whatever compositionis then placed overthe upper surface of the flange 5 and shoulder 4 ofbodyfA, see Figures l and 3. The annular plate I3 is thenplaced over theflashing material which rests on shoulder 4. The water tight connectionvbetween the body A, the hashing material and the plate I3 is producedby placing the ilange 2l over a portion of plate I3 with the bolts 8passing through the openings in the flange 2l. When the nuts 8A aresecurely threaded about the stems of bolts 8, not only is pressureapplied upon plate I3 and in turn upon the flashing material, but thedrain body B is securely held against support body A. It is understood,of course, that member C is placed into position before drain body B issecured as stated above.

The dome-shaped cup D not only guards the dome portion I8 of drain bodyB and prevents the clogging of slots I9, but also accumulates the Warmgases and keeps the slots from becoming closed by frost. The cap D alsoprovides additional drainage area by the slots 4I.

The foregoing describes the form embodying my invention, as exempliiiedin the drawing, but I claim all such modifications of the formillustrated as fairly fall within the scope of the lnvention dened inthe appended claims.

I claim:

l. In a device of the class described, the combination of a supportingbody of a general cylindrical contour ending in a tapered ange, saidbody having a plurality of bolt receiving recesses therein, meanspositioned within the supporting body for directing the gases passingthrough the bore of the supporting body, a multi-slotted dome-shapeddrainage member, having a lateral annular flange therearound, supportedupon and removably secured to the supporting body, and an anchoringplate interposed between the ange of the dome-shaped member and thesupporting body and seated upon roofing material for providing a watertight connection therebetween.

2. In a device of the class described, the combination of a supportingbody of a general cylindrical contour ending in a tapered flange, saidbody having a plurality of bolt receiving recesses therein, meanspositioned Within the supporting body for directing the gases passingthrough the bore of the supporting body, a multi-'slotted dome-shapeddrainage member having an annular flange therearound, supported upon andremovably secured to the supportingbody, ananchoring plate interposedbetween the flange of the dome-shaped member andV the` supporting bodyand seated upon roofing material ,for providing a water tight connectiontherebetween,

and means secured topthe apex of the domeshaped drainage member adaptedto protect the dome of said member and to accumulateY the gasespassing'through the bore of the supporting `l0 body. l

3. In a drain, a supporting body having abore therethrough flaringoutwardly vto form inverted frusto-conical portions yending inv anannular flange, said supporting body having a plurality `oi recesses forremovably anchoring bolts therein, an annular anchoring plate adaptedfor being seated upon the shoulder of said supporting body with flashingmaterial disposed therebev tween, a drainage member, having a pluralityof radially disposed elongated slots within its wall and a plurality ofradially disposed vslots within `its dome, removably secured to thesupporting member and adapted for retaining. the anchoring plate inWater tight connection with the llashing material, and means secured tothe apex of the dome of the drainage member adapted to protect the domeof ysaid member and to accumulate the gases passing through the bore ofthe supporting body.

4. Ina drain, a supporting body having a-bore therethrough flaringoutwardly to form inverted frusto-conical portions ending in a iiange,said supporting body having a plurality of recesses for removablyanchoring bolts therein, an ani' nular anchoring plate adapted for beingseated upon the shoulder of said supporting body with flashing materialdisposed therebetween, a drainage member havingfa plurality of radiallydisposed elongated slots Within its wall and a plurality ofV radiallyvdisposed slots within its dome, removably secured to the supportingmember and adapted for retaining the anchoring plate in Water tightconnection with the flashing material, means positioned within thesupporting body for directing the gases passing through the bore of thesupporting body, and means secured to the apex of the dome of thedrainage member adapted to protect the dome of said member and toaccumulate the gases passing through the bore of the supporting body.

5. The herein described drain comprising, a supporting body having abore therethrough which merges into a substantially frusto-conicalportion ending in a laterally shouldered frustoa, conical ange, alaterally flanged drainage member of the beehive type removably securedto the supporting member, means disposed between the supporting memberand the drainage member for providing a water tight connectiontherebetween and for securing the flashing material, a

plurality of ports disposed within the. iiange of the drainage member,said ports communicating f with the interior of the supporting body, and

means removably disposed within the supporting F body for directing thegases passing through the bore of the supporting body toward said ports.

6. The herein described drain comprising, a .supporting body having abore therethrough which flares into a substantially frusto-conicalportion ending in a laterally shouldered flange, a laterally angeddrainage member of therbeehive type removably secured to the supportingY member, means between the supporting member, flashing material anddrainage member for pro- 75 viding a Water tight connectiontherebetween,

a plurality of ports disposed within the ange of the drainage member,said ports communicating with the interior of the supporting body, meansremovably disposed within the supporting body for directing the gasespassing through the bore of the supporting body toward said ports, and adome-shaped member secured to the drainage member and disposed in spacedrelationship thereto, said dome-shaped member having a plurality ofkslots therein and adapted for accumulating the gases passing through thebore of the supporting body.

7. In a device of the class described, the combination of a supportingbody ending in a tapered flange, said body having bolt receivingrecesses therein, means positioned within said supporting body fordirecting the gases passing through the bore thereof, a flangedmulti-slotted drainage member supported upon and removably secured tosaid supporting'body, and an anchoring platev interposed between theange of the drainage member and said supporting body and seated uponroong material for providing a` water tight connection therebetween. I

8. In a device of the class described, the :combination of a supportingbody ending in a tapered flange, means positioned within said supportingbody for directing the gases passing through the bore thereof, `adrainage member supported upon and removably secured to said supportingbody, an anchoring plate interposed between the ange of said dome-shapedmember and said supporting body and seated upon roofing material forproviding a water tight connection therebetween, and means secured toVthe apex of the drainage member adapted to accumulate the gases passingthrough the bore of said supporting body.

9. In a drain, an outwardly aring supporting body having a boretherethrough, said supporting body having recesses for removablyanchoring bolts therein, an annular anchoring plate adapted for beingseated upon said supporting body with iiashing material disposedtherebetween, a slotted drainage member removably secured toy saidsupporting member and adapted for retaining said anchoring platein'water tight connection with the flashing material, and rmeans securedto said drainage member adapted to prevent said member from becomingclogged by debris.

10. In a drain, a supporting body having a bore therethrough, saidsupporting body having recesses for removably anchoring bolts therein,an annular anchoring plate adapted for being seated upon said supportingbody with ashing material disposed therebetween, a multi-slotteddrainage member removably secured to the supporting member and adaptedfor retaining the anchoring plate in water tight connection with theflashing material and a slotted dome-shaped member securedto the apex ofsaid drainage member and adapted to protect said member from debris andto also accumulate the gases passing through the bore of said supportingbody.

11. In a drain, a anged supporting body having a bore therethrough, anannular anchoring plate adapted for being seated upon said supportingbody with flashing material disposed therebetween, a drainage member,having a plurality of radially disposed elongated slots within its Walland a plurality of radially disposed slots within its dome, removablysecured to the supporting member, means positioned within saidsupporting body for directing the gases passing through the bore of saidsupporting body, and a dome-shaped member secured to the apex of saiddrainage member adapted to protect the dome of said member from debris.

12. The herein described drain comprising, a supporting body having abore therethrough which merges into a substantially frusto-conicalportion ending in a laterally shouldered rustoconical flange, said bodyhaving a plurality of bolt receiving recesses therein, a laterallyflanged drainage member of the bee-hive type removably secured to saidsupporting member, means disposed between said supporting member andsaid drainage member for providing a Water tight connection therebetweenand for securing the ilashing material, a plurality of ports disposedwithin the ange of said drainage member, said ports communicating withthe interior of said supporting body, and an annular ring removablydisposed Within said supporting body adapted for directing the vgasespassing through the bore of said supporting body toward said ports.

. 13.4 The herein described drain comprising a supporting. body having abore therethrough which merges into a substantially frusto-conicalportion ending in a laterally shouldered frustor conical flange, saidbody having a plurality of bolt receiving recesses therein, a laterallyanged drainagemember of the beehlve type removably secured to saidsupporting member and means disposed between said supporting member andsaid drainage member for providing a water tight connection therebetweenand for securing the ashing material, said drainage member having aplurality of ports disposed within the ilange thereof, said portscommunicating with the interior of said supporting body.

14. The herein described drain comprising, a ilanged body having a boretherethrough which flares into a substantially frusto-conical portion,said body having a plurality of bolt receiving recesses, a flangeddrainage member of the beehive type removably secured to said supportingmember, a plurality of ports disposed within the flange of said drainagemember, said ports communicating with the interior of said supportingbody, means removably disposed Within said supporting body for directingthe gases passing through the bore of said supporting body toward saidports, and a dome-shaped member secured to and disposed in spacedrelationship to said drainage member.

DAVID S. WILLIAMS

